Chloe Sunny and Lucas Quinn had a one-night stand, but neither knew the other’s identity. Five years later, with the help of Lucas’s grandmother, the two impulsively get married. After their whirlwind wedding, Lucas and his grandmother secretly guide and support Chloe’s personal growth while keeping his true identity hidden. As Lucas protects Chloe in their daily lives, he gradually falls in love with her. Eventually, they discover that they were each other’s one-night stand from years ago. After resolving the misunderstandings, the couple embraces their newfound happiness together.
